<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" Content="text/html; charset=Windows-1252">
<TITLE>About the HTML Help Viewer</TITLE>
<style>@import url(coUA.css);</style>
<link disabled rel="stylesheet" href="htmlhelp.css">
</head>

<BODY>

<H1>About the HTML Help Viewer</H1>

<p>The HTML Help Viewer is the standard three-pane help window in which a compiled help (.chm) file appears. Each pane of the Help Viewer can be manipulated through an <a href="str_hh_wintype.htm">HH_WINTYPE</a> structure.</p>

<p>The Help Viewer is shown below. Click a pane for more information:</p>

<table border="2" cellpadding="0" cellspacing="4">
<tr>
<td>
<IMG SRC="viewer.gif" USEMAP="#viewer" BORDER=0 WIDTH=626 HEIGHT=372 alt="The three-pane Help Viewer">
</td>
</tr>
</table>

<MAP NAME="viewer">

<AREA SHAPE=RECT COORDS="2,26 485,57" A HREF="JavaScript:viewer_panes.TextPopup
(TBPane,popfont,9,9,-1,-1)" Title="Square 1">

<AREA SHAPE=RECT COORDS="14,64 197,346" A HREF="JavaScript:viewer_panes.TextPopup
(NavPane,popfont,9,9,-1,-1)" Title="Square 2">

<AREA SHAPE=RECT COORDS="216,67 465,347" A HREF="JavaScript:viewer_panes.TextPopup
(TopicPane,popfont,9,9,-1,-1)" Title="Square 3">
</MAP>
</p> 

<h3>Note</h3>
<ul>
<li>The parent help window (<i>hwndHelp</i>) can be used to manipulate the entire Help Viewer and all of its panes.</li>
</ul>


<br>
<table border="0" cellpadding="0" cellspacing="4">
<tr>
<td valign="top"><a href="ov_about_help_window_types.htm"><img src="home.gif" width=20 height=18 alt="link to overview topic" border="0"></a>
</td>
<td><a href="ov_about_help_window_types.htm">About window types</A>
</td>
</tr>
<tr>
<td>&nbsp;
</td>
</tr>
</table>

<p>
<OBJECT
id=viewer_panes
type="application/x-oleobject"
classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"

>
</OBJECT>


<SCRIPT Language=JavaScript>
popfont="Verdana,8,, plain"
NavPane="The Navigation pane (hwndNavigation) contains all navigational elements, such as a Contents tab, Index tab, and Search tab."

TBPane="The Toolbar pane (hwndToolbar) contains one or more navigation buttons, such as Home, Refresh, and Stop."

TopicPane="The Topic pane (hwndHTML) displays the selected help topic, or the default help topic."
</SCRIPT>
</p>


<br>

</BODY>
</HTML>
